20728372

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{6221}}^1$

素因数の和:6256

約数の個数: 36

約数和(自身を含む): 44686404

約数和(自身を除く): 23958032

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 119, 196, 238, 476, 833, 1666, 3332, 6221, 12442, 24884, 43547, 87094, 105757, 174188, 211514, 304829, 423028, 609658, 740299, 1219316, 1480598, 2961196, 5182093, 10364186, 20728372]

約数ペア:

[(1, 20728372), (2, 10364186), (4, 5182093), (7, 2961196), (14, 1480598), (17, 1219316), (28, 740299), (34, 609658), (49, 423028), (68, 304829), (98, 211514), (119, 174188), (196, 105757), (238, 87094), (476, 43547), (833, 24884), (1666, 12442), (3332, 6221)]